Beocenter 1500 was a combined FM/AM tuner, hi-fi stereo amplifier and cassette recorder with a specification level that was unique for combination units in that price bracket. In the AM section, which covered long and medium waves, Bang & Olufsen placed an emphasis on the set’s ability to separate stations from each other. The FM section had outstanding channel separation and stereo reception. The amplifier’s technical specifications were way above the average and fulfilled accepted hi-fi norms by a wide margin.
The built-in cassette recorder had its own operation panel but was otherwise fully integrated with the rest of Beocenter 1500. There was a switch for normal and chrome tapes; recording level was monitored on an illuminated indicator: red signified overload and green meant that all was well. The tape heads were of a super Permalloy and had a higher performance level and longer useful lifetime than ordinary heads.
Beocenter 1500 had connections for record player, two sets of stereo speakers, headphones and an extra tape deck.
Beocenter 1500 and Beocenter 1600 were, at the time of their production, two of the market’s most compact audio systems, but despite their small external dimensions they could fill a large room with sound. All the push buttons of Beocenter 1500 were of solid aluminium, and the solid aluminium front panel on the Beocenter 1600 was anodised – a process which was more expensive and more demanding but which also made the set more robust and resistant to marks and scratches.
Beocord 5000 was a superior cassette deck with a Sendust tape head, dual capstans and a special servo drive system which secured low wow and flutter-data. Electronic recording level indicators (Peak Programme Meters) and the Fade in/Fade out functions facilitated exceptional recordings of the most demanding types of music. An automatic demagnetizing device helped ensure optimum signal/noise ratio at all times.
A Hall generator secured the most reliable automatic stop at the end of play. Because it worked electronically it was superior to mechanical systems which are always subject to wear and tear, stress and strain. Naturally Beocord 5000 incorporated Dolby B Noise Reduction circuits. You could also switch from fast forward to fast rewind, or normal play, without endangering your tapes or damaging the drive mechanism.
Despite these technological refinements Bang & Olufsen still didn’t forget the greatest advantage of the compact cassette – that of convenience. That’s why Beocord 5000 was so easy to use. The logically-arranged easy-touch buttons were clearly marked to aid simple, problem-free operation. An illuminated read-out panel told you the operational status of the deck at all times. The display could be read through the black Perspex cover which protected the cassette housing against dust. The unit had two peak programme meters which reacted faster than conventional VU meters in registering recording level and thus ensuring optimum recording quality.
There were two main design models in the Beocord 5000 range:the three head type 4705 was replaced in 1977 with the twin head 4715/4716 models.
What you need to know is that these were the only cassette deck with a B&O designed mechanism. It was designed to be to cassette decks what the Beogram 4000 was to record players. From a technical point of view, it was way ahead of its time.
However it was stupendously complicated and this hit reliability hard. The three head version hardly ever worked fully and the later two head was only a little better. Gorgeous to look at and packed with features, it will break your heart! B&O replaced this with the Beocord 8000, which had a bought in tape transport….
The fact that the Beocord 1100 was equipped with Dolby B Noise Reduction system immediately placed it among the market’s better cassette decks (catalogue 1977 / 78).
It had all the facilities you needed for recording compact cassettes and replaying them through an existing amplifier system. The combined record/playback head was made of Super Permalloy, an extremely durable material which ensured a long useful lifetime and had excellent magnetic properties. Other refinements included an electronic auto stop at end-of-tape and a switch for selecting between chromium dioxide and normal (ferric oxide) tapes.
The setting of correct recording levels was by way of individual controls used in conjunction with VU meters for left and right channels. Beocord 1101 was technically identical to Beocord 1100 but had a different exterior finish.
The fact that the Beocord 1100 was equipped with Dolby B Noise Reduction system immediately placed it among the market’s better cassette decks (catalogue 1977 / 78).
It had all the facilities you needed for recording compact cassettes and replaying them through an existing amplifier system. The combined record/playback head was made of Super Permalloy, an extremely durable material which ensured a long useful lifetime and had excellent magnetic properties. Other refinements included an electronic auto stop at end-of-tape and a switch for selecting between chromium dioxide and normal (ferric oxide) tapes.
The setting of correct recording levels was by way of individual controls used in conjunction with VU meters for left and right channels. Beocord 1101 was technically identical to Beocord 1100 but had a different exterior finish.
A combination system with the quality and specifications of “separates”
Beocenter 3500 was built upon the Beomaster 3000 and combined a top quality FM tuner, an automatic record-player and a powerful stereo amplifier. The tuner had six pre-set stations for instant selection, plus a large manual tuning scale. There was an illuminated tuning indicator and a signal-strength meter to assist easy, accurate tuning. The powerful amplifier produced 2 x 40 watts RMS of high-fidelity output and was equipped with switchable filters.
There was a comprehensive range of connection facilities including sockets for two pairs of loudspeakers, headphones and a tape recorder with monitoring. The record-layer was fully automatic with one master-control for operating all functions. You only have to select the control position applicable to the size of the record, and touch a button. Beocenter 3500 was an ideal, simple way of enjoying high quality sound from records and radio. It was fitted with a robust hinged dust cover which protects records during play.
Features:
In the high-fidelity amplifier section, emphasis was placed on specifications, frequency correction and connection facilities. The LOUDNESS feature permitted switching between an objective or a subjective linear reproduction and the LOW and I-II filter controls gave a sharper regulation of frequencies in addition to the normal bass and treble controls. The LOW filter helped reduce rumble resulting from poor records. The EH filter reduced hiss. There were sockets and push buttons for two pairs of loudspeakers. The headphone socket was on the receiver’s front. The tape connection facilitated AB monitoring. All input signals could be adjusted at the receiver’s base to give equal sound intensity on all programme sources. The FM section had six pre-set FM station selectors.
A light indicator assisted accurate tuning and an illuminated meter registered the signal strength of a station. The FM section was extremely sensitive (better than 1.4 uV I.E.C.) and harmonic distortion was a mere 0.4%. Field effect transistors, ceramic filters and integrated circuits were used. The built-in record-player was perfectly matched to the rest of the unit, from a specification point of view. The fitted pickup cartridge, the SP 10A (later SP 12A) had a spherical naked diamond and a stylus pressure of 1.2 grams. Frequency range was 20 – 25000 Hz ± 3 dB and distortion was lower than 1%. Wow and flutter was less than 0.09% and rumble was better than 60 dB.
The record player section was easy to operate: you simply selected the size of the record you intend to play – 7″, 10″ or 12″ – and press a button. The record-player automatically selected the correct speed – 33 or 45 rpm – and lowered the pick-up into the first groove. When the record ended, the pick-up arm returned to its resting place and the turntable switched off. The turntable and pick-up arm had a pendulum suspension which made the record-player section insensitive to vibrations. Deep furrows in the turntable made it easy to pick up records. A stroboscope and a spindle adaptor for centreless records was provided. Beocenter 3500 was fitted with a hinged dust lid which was easily removed by a sliding action.
Beocenter 3500 had an extra Phono input. This was a ‘hang over’ from the Beomasters of the time which allowed two Beograms to be connected to the music centre. However, Phono 2 needed an RIAA pre-amplifier as it required a line level input. This feature became ‘Tape 2’ in later models.
Beocenter 4600 was a multi-way combination unit incorporating a 2 x 25 watts RMS AM/FM receiver, an easy to use hi-fi cassette deck and an automatic record player. The lightweight arm had built-in bias compensation and carried Bang & Olufsen’s MMC 20S pickup cartridge with spherical diamond stylus.
The AM radio covered long and medium wavebands. Outstanding reception quality and high selectivity was secured by an Automatic Gain Control circuit, active noise suppression and hybrid filters.
The FM tuner was highly sensitive. Four stations could be pre-set for subsequent instant recall. The hi-fi cassette deck had all the features and qualities normally expected only in a separate deck:
* 3-digit counter with memory function
* electronic tape stop at end of play
* Dolby B Noise Reduction
* chrome or normal tapes could be used
The super Permalloy tape head was hard-wearing and had a long, useful lifetime. The record player too was automated: all functions were controlled by a single button. The anti-skating device worked automatically too. Bang & Olufsen’s MMC 20 S pickup cartridge with a spherical diamond was an integral part of this unit. Two Beovox S40 speakers complete this system if this was your choice.
Beocenter 3300 combined a powerful AM/FM stereo receiver with an automatic record player. Technically identical to the Beomaster 2200, the receiver section offered programmes on FM, long and medium wavebands and up to 2 x 40 watts RMS amplification with low distortion levels. It also had the same logical operation facilities.
The record player had a spring-suspended rotatory mechanism and an electronic servo drive system which ensured accurate turntable speed – even during variations in the mains current supplies. A special pendulum leaf spring suspension made the arm and platter immune to external shock and vibration which causes most other record players to mistrack and damage the record and sometimes even the stylus.
All functions of the record player were operated by touching a single button. The start/play/stop cycle is entirely automatic and moves, lifts or lowers the arm much more delicately than could the human hand. The MMC 20E cartridge carried an elliptical diamond stylus.
Beocenter 3300 had sockets for a tape deck, an extra record player, headphones and two sets of stereo speakers. The unit could be made up as part of the Beosystem 3300, when linked together with other compatible Bang & Olufsen products.
Beocenter 4600 was a multi-way combination unit incorporating a 2 x 25 watts RMS AM/FM receiver, an easy to use hi-fi cassette deck and an automatic record player. The lightweight arm had built-in bias compensation and carried Bang & Olufsen’s MMC 20S pickup cartridge with spherical diamond stylus.
The AM radio covered long and medium wavebands. Outstanding reception quality and high selectivity was secured by an Automatic Gain Control circuit, active noise suppression and hybrid filters.
The FM tuner was highly sensitive. Four stations could be pre-set for subsequent instant recall. The hi-fi cassette deck had all the features and qualities normally expected only in a separate deck:
* 3-digit counter with memory function
* electronic tape stop at end of play
* Dolby B Noise Reduction
* chrome or normal tapes could be used
The super Permalloy tape head was hard-wearing and had a long, useful lifetime. The record player too was automated: all functions were controlled by a single button. The anti-skating device worked automatically too. Bang & Olufsen’s MMC 20 S pickup cartridge with a spherical diamond was an integral part of this unit. Two Beovox S40 speakers complete this system if this was your choice.
” This title and the picture of Beosystem 1700 might suggest a paradox to many readers. And in a way you are right. But there is a reason why Bang & Olufsen has separated this otherwise perfectly integrated high-fidelity system. The combination possibilities in Beosystem 1700 are so numerous that for many people the entire system is unnecessary. The essential part of the system is BeoLab 1700: a 2 x 20 watts RMS amplifier with ambiophonic stereo facilities.
BeoLab 1700 type 2605 was an amplifier designed to be used with Beomaster 1700 tuner.
The tuner, Beomaster 1700, the cassette-recorder, Beocord 1700 and the record player, Beogram 2000 (not shown) cover nearly all existing programme sources for the reproduction of music. Beovox 2702 loudspeakers complete the system. Beovox 1702 are recommended as side speakers for ambiophony, if this extra sound experience is desired. Now it is up to you to put your ideal Beosystem 1700 together. ”
The unit was a high-fidelity stereo amplifier whose technical specifications exceeded the DIN 45500 high fidelity norms by a wide margin. Frequency range was 20-30.000 Hz and power bandwidth was 10-50.000 Hz. Harmonic distortion was less than 0.1% at the normally used output (50 mW) and less than 0,5% at maximum power output (2 x 20 watts RMS). Music output was 80 watts total. With four loudspeakers – two front and two at the sides, ambiophony (an extension of stereo reproduction) could be achieved.
Apart from loudspeaker connections, there were sockets for tuner, tape recorder, record player and headphones. BeoLab 1700 had slider controls for volume, bass, treble and balance. A push button for LOUDNESS facilitated switching between an objective and a subjective linear reproduction. Monitoring (AB switching) could be carried out on BeoLab 1700 if the connected tape recorder had separate record and play-back heads.
